Watch Supergirl

In this superhero adventure series, Kara Zor-El, the cousin of the Kryptonian hero Superman, must learn how to use her own super powers to fight against evil. The series is part of The CW's stable of DC Comics-based titles, and it sometimes features crossovers from the other series.

Colonel Haley is upset after Supergirl responds to a distress call from a Navy ship that turned out to be a deadly alien attack. Colonel Haley reclaims the site as DEO territory and demands that Supergirl step aside. After Supergirl refuses to be told what to do, Haley refocuses her energy on finding out Supergirl's true identity and begins to interrogate all DEO agents, including Alex. Meanwhile, Brainiac-5 tries to persuade Nia to embrace her superpowers but she misinterprets his motives.

Episode 9 - Elseworlds, Part 3

1 month ago

Supergirl , The Flash , Green Arrow and Superman engage in the battle of their lives.

Episode 8 - Bunker Hill

Episode 7 - Rather the Fallen Angel

2 months ago

James falls in deeper with the Children of Liberty in his efforts to meet Agent Liberty. Meanwhile, Supergirl and Manchester Black follow a lead on Agent Liberty's location, but things take a dark turn. Lena kicks off her first set of trials.

Episode 6 - Call to Action

2 months ago

Everyone gathers for Thanksgiving but Kara is feeling down after her televised debate with Ben Lockwood about the anti-alien sentiment coursing through National City. Meanwhile, James and Lena argue about the best way to handle the Children of Liberty.

Episode 5 - Parasite Lost

2 months ago

Colonel Haley makes a surprising decision regarding Supergirl. Kara writes s series of articles highlighting aliens in National City in the hopes that humans will stop being so fearful of them. Unfortunately, the article puts some of the aliens in harm's way.

Episode 4 - Ahimsa

3 months ago

When Supergirl needs help, Alex asks Lena and Brainiac to team up. Meanwhile, J'onn questions his decision to quit the DEO. However, after running into Manchester Black, he realizes there are a lot of ways to help his fellow aliens during this tumultuous time.

Episode 3 - Man of Steel

3 months ago

Ben Lockwood didn't always hate aliens. Through a series of incidents, and input from his anti-alien father, Ben slowly transforms from a mild-mannered professor into the villainous Agent Liberty of today.

Episode 2 - Fallout

3 months ago

A shocking revelation causes chaos in National City. Supergirl sets out to capture Mercy Graves, while Alex takes control at the DEO. Back at CatCo, Kara decides to write an investigative story on Mercy and asks Lena if she can interview her as Mercy has ties to the Luthors. Meanwhile, Brainy meets Nia and the two end up in a precarious situation.

Episode 1 - American Alien

3 months ago

Diving back into reporting, Kara welcomes a new cub reporter to CatCo. Meanwhile, James and Lena argue about James' impending indictment for acting as the vigilante Guardian, while Alex and Brainy struggle to get in sync at the DEO. Supergirl is called into action when remnants of the anti-alien terrorist organization Cadmus try to assassinate pro-alien leaders, but their endgame turns out to be much more sinister than she expected. J'onn relishes his peaceful new life, but an outing with an old friend causes him concern.

Season 323 full episodes, 25 clips available

Episode 23 - Battles Lost and Won

7 months ago

Supergirl learns the true depth of Serena's nefarious plans for Earth. Supergirl, Mon-El and Alura must devise a plan to stop her before Serena gets to Earth. J'onn prepares to say goodbye to his father.

Episode 22 - Make It Reign

7 months ago

Supergirl learns the true depth of Selenas (recurring guest star ANJALI JAY) nefarious plan for Earth. While Jonn prepares to say goodbye to his father, Supergirl, Mon-El and Alura (reccurring guest star ERICA DURANCE) must devise a plan to stop Selena before she gets to Earth.

Episode 21 - Not Kansas

8 months ago

Kara makes a major life decision. Meanwhile, J'onn finds out that special DEO-caliber guns have hit the streets of.

Episode 20 - Dark Side of the Moon

8 months ago

Supergirl is stunned to discover that a part of Krypton survived. Meanwhile, Alex is attacked while out with Ruby, and Lena considers how far she will go to keep Reign contained.

Episode 19 - The Fanatical

8 months ago

When Tanya, a disciple of Coville's, escapes from what's left of his cult, she gives Kara and James a journal that could hold the key to saving Sam. Someone learns Guardian's identity and threatens to expose James if he doesn't do what they ask. James contemplates what it means to be a black vigilante without a mask.

Episode 18 - Shelter from the Storm

8 months ago

When Reign starts hunting Ruby, Supergirl and Alex work together to keep her safe. Supergirl and J'onn look to Sam's mother (guest star Betty Buckley) for advice on how to stop Reign and come away with some shocking news.

Episode 17 - Trinity

9 months ago

Still reeling after learning about Lena's secret, Supergirl asks Guardian for a favor that could alter his relationship with Lena forever. Meanwhile, with all three Worldkillers united, Supergirl and the team brace for an epic battle.

Episode 16 - Of Two Minds

9 months ago

Supergirl and Imra have different ideas on how to stop the third Worldkiller, Pestilence. However, when both Alex and Winn are seriously injured by Pestilence, Supergirl and Imra team up to stop the destruction.

Episode 15 - In Search of Lost Time

9 months ago

When Myr'nn inadvertently causes psychic disturbances at the DEO, Supergirl must work with J'onn to contain the resulting chaos. Meanwhile, Mon-El begins training Kara in fighting techniques he's learned in the future for battling.

Episode 14 - Schott Through the Heart

9 months ago

When Winn's father dies, his estranged mother, Mary, reappears trying to reconnect and to explain why she abandoned him all those years ago. Winn is too embittered from his rough childhood to forgive her but when a copycat Toyman attacks, the two must work together to stop him. Mon-El tells Kara something important about the Worldkillers, and Alex becomes suspicious of Myr'nn's recent behavior.

Episode 13 - Both Sides Now

12 months ago

The DEO captures a second Worldkiller, Purity. Supergirl and Alex use very different methods of interrogation with Purity in the hopes of finding out how to defeat Reign. However, Purity escapes and attacks the city's subway tunnels. Meanwhile, J'onn, Winn and Mon-El band together to fix the Legion ship.

Episode 12 - For Good

12 months ago

Someone tries to kill Morgan Edge and he barely survives. He accuses Lena of being behind the attempt and vows to destroy her. When Lena fears her hatred for Morgan will take her to the Luthor dark side, Kara steps in to help her friend. Meanwhile, after Sam realizes she's losing time, she confides in Alex who decides to run some medical tests to see if she can find out what's going on with her new friend.

Episode 11 - Fort Rozz

12 months ago

As Reign continues to terrorize the city, Supergirl teams up with Saturn Girl, and the two recruit Supergirl's former enemies, Livewire and Psi, to form a team for a mission to Fort Rozz to recover a prisoner who has information on how to defeat Reign once and for all. Meanwhile, Alex babysits Ruby.

Episode 10 - Legion of Super-Heroes

1 year ago

Struggling to heal from her injuries inflicted by Reign, Supergirl remains in a dreamlike state, unable to be reached. Mon-El recruits one of the Legion members, Brainiac-5, to try to bring her back. Meanwhile, Reign continues her rampage on the city so the DEO teams up with the Legion of Superheroes to try to stop her.

Episode 9 - Reign

1 year ago

Supergirl investigates a mysterious symbol popping up all over National City, tracing its origins back to an ancient prophecy and the mark of the World Killer, Reign. Meanwhile, the tension between Lena and Morgan Edge continues to build, causing James to step in and offer up some protection, and possibly igniting a spark in the process.

Episode 8 - Crisis on Earth-X, Part 1

1 year ago

Barry and Iris's wedding brings the gang together, but things go awry when villains from Earth-X attack the ceremony. All of the superheroes band together with help from their super friends like Citizen Cold, The Ray, Felicity Smoak, Iris West and Alex Danvers to take on their most formidable villains yet. Earth's mightiest heroes

Episode 7 - Wake Up

1 year ago

When Winn and the team discover an alien ship has crash landed deep underwater beneath National City, Kara/Supergirl is called in to investigate. Meanwhile, Hank attempts to bond with his father, Myr'nn. Samantha, eager for some understanding of the changes she has been experiencing, looks to her estranged mother, Patricia Arias, for answers.

Episode 6 - Midvale

1 year ago

Kara and Alex head home to Midvale for a little R&R. While there, Kara recalls a painful memory of a childhood friend's death and how that traumatic experience brought the Danver sisters closer together.

Episode 5 - Damage

1 year ago

When multiple children get sick from lead poisoning, Morgan Edge points the finger at Lena and blames her creation of the lead bomb she made to save National City from the Daxamites. While Lena knows she never intended any harm, she fears there may have been a flaw in her design, leaving her responsible. Kara teams up with Samantha to clear Lena's name, but it turns out to be harder than they thought. Meanwhile, Alex and Maggie make a crucial decision about the future of their relationship

Episode 4 - The Faithful

1 year ago

Kara investigates a secretive new group whose leader, Thomas Coville, has a mysterious connection to Supergirl. Meanwhile, Samantha feels like she's letting Ruby down, and J'onn confesses an old secret.

Episode 3 - Far From the Tree

1 year ago

Eliza throws Alex and Maggie a wedding shower, which causes Maggie to reach out to her estranged father. Supergirl joins J'onn on a personal mission.

Episode 2 - Triggers

1 year ago

Psi, a thief with psychic powers, attacks National City. Able to immobilize people by tapping into their worst fears, Psi proves a formidable opponent for Supergirl. Meanwhile, James and Lena are at an impasse, and Samantha starts her new job at.

Episode 1 - Girl of Steel

1 year ago

Kara deals with the loss of Mon-El by focusing all her energy on being Supergirl and the mysterious new threat against National City. Alex confesses a secret to Maggie about their impending nuptials. A citizen of National City has a mysterious connection to Kara, and Lena makes a bold move.

Supergirl is currently available to watch free on The CW and stream on The CW. You can also stream, download, buy, rent Supergirl on demand at Netflix, Amazon, Hulu, Vudu, FuboTV, FandangoNow, Google Play, DIRECTV NOW, iTunes online.

Supergirl News

'Supergirl' Movie in the Works

Don't expect it to star Melissa Benoist, though.

World's First Trans Superhero Coming to 'Supergirl'

The CW series will be breaking new ground in the fall.

'Supergirl' Melissa Benoist Makes Broadway Debut

Turns out that Supergirl can sing, too.

'Supergirl' Showrunner Fired After Sexual Harassment Claims

Andrew Kreisberg was also showrunner for 'The Flash.'

The CW Releases Its Fall Premiere Schedule

The network will debut new episodes of all its series in a single week.

Tyler Hoechlin's Superman Returns to 'Supergirl'

The heroine's cousin will visit National City once again.

'Supergirl' Makes CW Debut

Supergirl has migrated from CBS to The CW for its second season, and that's not the only big event in store for the series this week.